Soldering station / Magnetic PCB holder

This circuit board holder makes it easier to work on circuit boards. Be it for soldering or taking measurements.

The circuit board is clamped with one or more holders. A spring is used to generate the necessary force.
The holder itself is held on the work surface with a magnet.
I simply used a sheet of steel 1.5 mm thick (do not use stainless steel!) that is about the size of an A4 sheet of paper.

Also take a look at my matching third hand.

Print Settings and Assembly:

Parts:

There are two versions of the pin. 
One has a threaded insert that has to be soldered in, the other allows the screw to be screwed directly into the plastic.
The version with the threaded insert is easier to mount and is more durable. But it also works without if you don't have a threaded insert available.

There is now also a folder in which the pins have a smaller diameter so that there is more space between the pin and the hole in the clamp (the movable part).

The spring has an inner diameter of 8 mm and a length of approx. 20 mm. 
The screw is an M3 x 10 mm hexagon socket screw.
And the disc magnet is a neodymium magnet Ø 8.0 x 3.0 mm.

Print Settings:

I used PETG and Ninjaflex TPU for the parts.

You do not need support. Even the base can be printed in the normal orientation without support.

The pin looks best if you select "concentric" for the bottom fill pattern.

The TPU_Base_Plate should be printed from TPU because it is pressed into the base.

Only the grab area of the clamp should be printed with fuzzy skin.
The settings have already been made in the uploaded Clamp.3mf file.

Assembly:

If you are using the pin with the threaded insert, you should first melt it in with a soldering iron.
The clamp is placed on the pin and then the spring.
The base can now be screwed to the pin using the screw.
If you use the pin without a threaded insert, you may need to hold it with pliers when you want to insert the screw.
The disc magnet is inserted into the TPU base plate.
The TPU base plate is pressed into the groove of the base. This requires some force. It is best to press the whole thing onto a table.